AI SQL Assistant

Sequel is the data layer for AI agents. It manages authentication, credentials, and query execution so any MCP-compatible agent can securely query cloud databases, data warehouses, product analytics, and SaaS tools. Connect a source once; query from Claude Code, Cursor, VS Code, Windsurf, and other MCP clients. Supports PostgreSQL via RDS/Supabase/Neon, BigQuery, Snowflake, ClickHouse, Google Analytics, Amplitude, and Ahrefs. Dual authentication: Bearer API keys or OAuth 2.0 with PKCE, both scoped to your organization's connected sources only.

Postgres Sandbox: Build and experiment with Supabase databases and your own LLMs.

Querio is an AI-powered analytics platform focused on making data exploration and integration accessible through agent-based approaches. Its engineering blog reveals a considered architecture: workflow routing where LLM calls decide execution paths, specialized tool sets kept deliberately small, and context design that handles both initial queries and follow-ups. While the public product surface remains lightly documented, the technical writing signals a team that thinks carefully about agent limitations — token budgets, tool sprawl, and conversation state — rather than papering over them.